ATCO Australia | 12,128 followers on LinkedIn. ATCO's Australian operations are headquartered in Perth, Western Australia and specialises in creating innovative, customer focused energy and infrastructure solutions. We own and operate Western Australia's largest gas distribution network with more than 800,000 connection points and 14,500km of pipelines. We also provide secure, reliable baseload power to the Pilbara region via our Karratha electricity generation station, and for almost 20 years have owned and operated power generation in South Australia.